Comment 2 for bug 2052484

Reviewed: https://review.opendev.org/c/openstack/neutron/+/908173
Committed: https://opendev.org/openstack/neutron/commit/b38f72b2129ee377cb80132ca9c0794b60585be6
Submitter: "Zuul (22348)"
Branch: master

commit b38f72b2129ee377cb80132ca9c0794b60585be6
Author: Takashi Kajinami <email address hidden>
Date: Wed Feb 7 01:46:47 2024 +0900

    Completely disable rpc workers when rpc_workers=0

    Currently at least 1 rpc worker is launched even when a user requests
    zero workers by setting rpc_workers=0. The setting of rpc_workers=0 is
    used when ml2-ovn plugin is used without any additional agent, and in
    this deployment pattern the single rpc worker is not at all used.

    This change ensures no rpc worker is launched when rpc_workers options
    is explicitly set to 0. This may be classified as a breaking change,
    but is consistent with the earlier change[1] for rpc_workers=0.

    [1] 3e1e2d63b3383d28c9a36b00000ab89caffa3829

    Closes-Bug: #2052484
    Change-Id: I878e50c3192ecd3b145ded0ab8394845a089696e